Environmental parameters of iron-enriched sediments at LTER HAUSGARTEN during POLARSTERN cruise PS93 ...

Impact of Local Iron Enrichment on the Small Benthic Biota in the deep Arctic Ocean The study assesses the impact of local iron enrichment on the small benthic biota (bacteria, meiofauna) together with environmental parameters indicating the input of food at the deep seafloor. To evaluate the hypoth...

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Bibliographic Details
Main Authors: Hasemann, Christiane, Soltwedel, Thomas
Format: Dataset
Language:English
Published: PANGAEA 2023
Subjects:
Deep sea
Hausgarten
iron
meiofauna
Nematoda
sediments
Core
Latitude of event
Longitude of event
Latitude of event 2
Longitude of event 2
Gear
DATE/TIME
Depth, bathymetric
DEPTH, sediment/rock
Bacteria, cells
Iron
Water content, sediment
Sediment, ash free dry mass
Chlorophyll a
Phaeopigments
Chloroplastic pigment equivalents per volume
Remote operated vehicle
PS93.2
Polarstern
Long-term Investigation at AWI-Hausgarten off Svalbard Hausgarten
Arctic Ocean
Fram Strait
Svalbard
Online Access:https://dx.doi.org/10.1594/pangaea.956001
https://doi.pangaea.de/10.1594/PANGAEA.956001
Description
Summary:Impact of Local Iron Enrichment on the Small Benthic Biota in the deep Arctic Ocean The study assesses the impact of local iron enrichment on the small benthic biota (bacteria, meiofauna) together with environmental parameters indicating the input of food at the deep seafloor. To evaluate the hypothesis that abundance, distribution, and diversity of the small benthic biota varies in relation to a local input of structural steel at the seabed, we analyzed sediment samples and the associated infauna along a short transect with increasing distance to an iron source, i.e., corroding steel weights of a free-falling observational platform (bottom-lander), lying on the seafloor for approximately seven years. Iron-enriched surface sediments in the vicinity of the bottom-weight left in summer 2008 after a short-term deployment of a bottom-lander in 2433 m water depth at the LTER (Long-Term Ecological Research) observation HAUSGARTEN in eastern parts of the Fram Strait were sampled on 28th July 2015 using push-corer ...

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